1
0
Fork 0
mirror of https://gitlab.com/sortix/sortix.git synced 2023-02-13 20:55:38 -05:00
sortix--sortix/sh/showline.h

61 lines
2.1 KiB
C
Raw Normal View History

/*
* Copyright (c) 2011, 2012, 2013, 2014, 2015 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* showline.h
* Display a line on the terminal.
*/
2015-04-02 09:56:33 -04:00
#ifndef SHOWLINE_H
#define SHOWLINE_H
#include <stddef.h>
#include <termios.h>
// TODO: Predict the terminal colors as well!
struct cursor_predict
{
bool escaped;
};
struct show_line
{
struct wincurpos wcp_start;
struct wincurpos wcp_current;
struct winsize ws;
int out_fd;
char* current_line;
size_t current_cursor;
bool invalidated;
};
struct wincurpos predict_cursor(struct cursor_predict* cursor_predict,
struct wincurpos wcp,
struct winsize ws,
wchar_t c);
bool predict_will_scroll(struct cursor_predict cursor_predict,
struct wincurpos wcp,
struct winsize ws,
wchar_t c);
void show_line_begin(struct show_line* show_state, int out_fd);
bool show_line_is_weird(const char* line);
void show_line_change_cursor(struct show_line* show_state, struct wincurpos wcp);
bool show_line_optimized(struct show_line* show_state, const char* line, size_t cursor);
void show_line(struct show_line* show_state, const char* line, size_t cursor);
void show_line_clear(struct show_line* show_state);
void show_line_abort(struct show_line* show_state);
void show_line_finish(struct show_line* show_state);
#endif